Title :
A 94 GHz radar using a six-port reflectometer as a phase/frequency discriminator
Author :
Khy, Antoine ; Huyart, Bernard
Author_Institution :
Departement de Commun. et Electron., Ecole Nat. Superieure des Telecommun., Paris
Abstract :
A 94 GHz radar sensor is proposed. The receiver front-end module of this system is based on a six-port reflectometer used as a phase/frequency discriminator. This device determines Doppler frequency (and consequently, relative speed) by means of the phase difference between transmitted and received signals. For the first time at this frequency, measurements with a real moving target are performed. The six-port circuit equations, the radar operating principle and architecture and speed measurements are presented
Keywords :
discriminators; millimetre wave detectors; multiport networks; radar equipment; reflectometers; 94 GHz; phase/frequency discriminator; radar sensor; receiver front-end module; six-port circuit equations; six-port reflectometer; Calibration; Circuits; Costs; Detectors; Doppler radar; Equations; Frequency modulation; Performance evaluation; Radar measurements; Velocity measurement;
Conference_Titel :
Radar Conference, 2005. EURAD 2005. European
Conference_Location :
Paris
Print_ISBN :
2-9600551-3-6
DOI :
10.1109/EURAD.2005.1605603
